Thermoplastics Flashcards
Give 5 properties of acrylic
Stiff Hard Durable Easily scratched Good electrical insulator
Give 3 disadvantages of acrylic
Brittle
Can break
Scratches easily
What are the applications of acrylic?
Lighting
CD cases
Baths
Name the 3 different types of polyethylene
HDPE
LDPE
PET
Give 4 properties of HDPE
Good electrical insulator
Chemical resistant
Impact resistant
Flexible
Give 2 disadvantages of HDPE
Colour fades over time
Can break under stress
What are the applications of HDPE?
Water tanks
Buckets
Give 3 properties of LDPE
Good electrical insulator
Chemical resistant
Flexible
Give 2 disadvantages of LDPE
Colour fades over time
Can break under stress
What are the applications of LDPE?
Cable insulation
Dustbin bags
Give 3 properties of PET (Polyethylene Terephthalate)
Chemical resistant
High impact resistance
High tensile strength
Give 2 disadvantages of PET (Polyethylene Terephthalate)
Can discolour
Needs to be treated to prevent taste problems when used in food containers
What is an application of PET (Polyethylene Terephthalate)?
Fizzy drink bottles
Give 6 properties of PVC (Polyvinyl Chloride)
Good chemical resistance Weather resistant Stiff Tough Hard Lightweight
Give a disadvantage of PVC (Polyvinyl Chloride)
UV light causes brittleness
What are the applications of PVC (Polyvinyl Chloride)?
Electrical wiring insulation
Pipes for guttering
Give 4 properties of PP (Polypropylene)
Lightweight
Hard
Impact resistant
Chemical resistant
Give 2 disadvantages of PP (Polypropylene)
UV causes degradation
Oxidation can be a problem during manufacturing
What are the applications of PP (Polypropylene)?
Medical syringes
Carpets
Kitchenware
Give 3 properties of PS (Polystyrene)
Compressed:
Light
Hard
Low impact strength
Expanded:
Buoyant
Lightweight
Good insulator
Give 2 disadvantages of PS (Polystyrene)
Compressed:
Weak
Ignites easily
Expanded:
Breaks easily
Ignites easily
What are the applications of PS (Polystyrene)?
Compressed:
CD cases
Refrigerator lining
Expanded:
Packaging
Insulation
Give 3 properties of ABS (Acrylonitrile Butadiene Styrene)
Chemical resistant
Hard
Tough
Give a disadvantage of ABS (Acrylonitrile Butadiene Styrene)
UV causes degradation
